Pulverizer.



M. F. WILLIAMS & E. H. FRIUKBY.

PULVERIZER.

APPLICATION FILED JUNE 15, 1910v Patented Apr. 9, 1912.

3 SHEETSSHEET 1.

IN VEN T035 W/ vwass as M. F. WILLIAMS & E. H. FRICKEY.

PULVERIZER.

APPLICATION FILED JUNE 15,1910

1,022,454, Patented Apr. 9, 1912 3 SHEETS-SHEET 2.

I INVENTOBS M. P. WILLIAMS & E. H. FRIOKEY.

PULVERIZER.

APPLICATION FILED JUNE 15, 1910.

1,022,454. Patented Apr. 9, 1912.

s SHEETS-SHEBT 3.

9 Q N k 0 80 0 0 0 0 00 0O 0 0 O0 0 Q0 '0 o 0 u o I WITNESSES 4l/vve/vro/es MILTON F. WILL/HMS flow 7R0 H. Fem/av UNITED STATES PATENTOFFICE.

MILTON WILLIAMS AND EDWARD H. FRICKEY, OF ST. LOUIS, MISSOURI, ASSIGNORSTO WILLIAMS PATENT CRUSHER & PULVERIZER COMPANY, OF ST. LOUIS, MIS-SOURI, A CORIDRATION OF MISSOURI.

PULVERIZER.

Specification of Letters Patent.

Patented Apr. 9, 1912.

To all whom it may concern:

Be it known that we, MILTON F. WIL- LIAMS and EDWARD H. FRIGKEY,citizens of the United States, residing in St. Louis, Missouri, haveinvented a certain new and useful Improvement which the following is afull, clear, and exact description, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, forming part of thisapplication, in which,

Figure '1 is a side elevational view of our improved pulverizer. Fig. 2is a vertical longitudinal section through the same. Fig. 3 is a frontelevational view partly in section. Fig. 4'is a detail sectional view online 4-4 of Fig. 1.

This invention relates to a new and useful improvement in pulverizers,the object being to construct a device so that the grinding surfaces maybe adjusted by novel mechanism toward and from the hammers.

A further object is to construct the device so that the grindingsurface,- or a section thereof, may be dropped for the purpose ofdischarging a load, or of getting rid of uncrushable material, meansbeing also provided for restoring the dropped to its operative position.1

With these objects in view the invention consists in the construction,arrangement and combination of .the several parts as will hereinafter bedescribed and afterward pointed out in the claims.

In the drawings 1 indlcates the side walls of the machine, preferably inthe form of a casting, and 2 is the front wall, the lower portion 2 ofwhich is preferably hinged for the purpose of gaining access to theinterior to renew the grinding surfaces. 3 is the rear wall, whoselowest section .3 is hinged for the same purpose.

4 is the top wall which is preferably rovided with a corrugated innerface w ich serves as a grinding surface. A portion of the casting 5,constituting. a continuation of this wall, is provided with a feedopening 6, through which material to be reduced is introduced into themachine.

7 is a breaker plate, as it is called, which is preferably mounted upona casting 8,

in Pulverizers, of

cage section pivotally arranged upon a rod 9. This casting 8 is providedwith a slot .or opening in its lower end for cooperating with a rod 10.The rod 10 is carried by levers 11, arranged on each side of themachine, the side walls 1 being slotted for the passage of said rod.Levers 11 are pivotally mounted upon the rod 9, said levers havingthreaded openings in their lower ends for cooperating with the screwthreads of the rotatable rods 12. Each of the rods 12 may be turned bymeans of a collar 13, having suitable open ings whereby levers 11, andthe 'carried'rods 10 may be adjusted inwardly and outwardly. By theengagement of the rod 10 with the breaker plate carrying frame the lowerend of the breaker plate may be adjusted toward and from the hammers tocompensate for wear and renewal of said hammers.

Suspended from rod 10 is a frame 7 comprising the curved side bars 14,and castings 15, the latter connecting said side bars together. Thisframe carries a grinding surface 16. The frame is preferably suspendedfrom the rod 10 by means of hooked extensions 15, and is not onlycapable of having its upper end moved toward and from the hammers tocompensate for wear and renewal when the rod 10 is adjusted, but saidframemay also swing from said rod to discharge the material, when themachine is overloaded, choked or uncrushable material is fed thereto.The frame is supported in posit-ion by means of latch levers 17, seeFig. 4, the upper inner ends of which are provided with projections 17,which fit in the openings 1 in the side frames, while the lower innerfaces of which are formed with cam faces 17", whereby, when said frameis raised to be restored to position the latch levers are movedoutwardly by the engagement of the parts 14 with the cam faces until theprojections 17 register with the opening in the side frame. A spring 18tends to hold the latch lever, a latch-lever being on each side of theframe, in position, and this spring and latch lever are carried by ablock 19 mounted in guideways 19, preferably radially dis osed, to theaxis of revolution of the hammers. This carrying block 19 is supportedby a wedge 20 preferably dove-tailed therein,

which wedge has its outer end connected to the lower end of lever 11.Thus when lever 11 is adjusted not only does the rod 10 move the upperend of the grinding section inwardly, but the wedge operated latch leveralso moves the lower end of the grinding section inwardly or outwardly,as the case may be to compensate for wear or renewal of the hammers.

21 indicates a lever arranged on each side of the machine, and fulcrumedupon the side frames at 21 said levers being connected by a rod 22, eachof said levers 21 cooperating with a projection 17" on the latch levers.In the event that the machine is choked, overloa ed or uncrushablematerial is fed thereinto, and it is desired to discharge the load so asto relieve the mchine the rod 22 is raised, whereupon the latch leversare retracted and the pivoted cage section permitted to drop.

To restore the cage section to posit-ion we loosely arrange a hand wheel23 ,on the end of shaft 10, outside of the casing, to which 'hand wheelis conjoined a pinion 24. Pinion 24 meshes with a gear 25, which iseither splined upon the shaft 9 or is conjoined to a pinion 26 splinedon said shaft, and which pinion 26 meshes with a gear 27 splined on theshaft 10. Shaft 10, where the grinding section is hooked thereover, ispreferably provided with two fiat faces with which the hooked portionsengages, so that irrespective of the previous adjustment of saidgrinding section, said grinding section when it is dropped, may be swungback into position by the rotation ofthe shaft 10, the latch leversbeing relied upon to support said grinding surface into position,irrespective of the radially adjusted positions of said latch levers.-The rod 10, while geared to the hand wheel in the manner abovedescribed, is perfectly free to rotate with the dropping cage and by sodoing rotate the gears, because. no restraint in any way of a lockingpawl is imposed upon the gears. The purpose of employing reducing carfrom the hand wheel 23 to the shaft 10, is to enable an operator torestore the dropped cage section manually. Instead of having the shaft10 flattened, which enables the removal of the cage section, it isobvious that said cage section could be fastened directly to the shaft10 by means of pins, or in any other well known manner, as theremovability is a matter of infrequent occurrence.

, whereas, the dropping and restoration of the cage section is a matterof possible frequency, and it may be desirable not to weaken the shaft10 by flattening the sides thereof as herein described. The cage sec- 7tion is preferably provided with a clevis 28 located about its centerfor the purpose of attaching a chain to remove the same in case ofrenewal,

29 indicates a cage section pivotally mounted in the rear of the machineand A constituting practically the second quarter ofthe grindingsurface, this rear cage section being separated from the forwardpivotally mounted cage section by means of a casting 30, which may besecured to the side frames of the machine. Cage section 29 is supportedby latch levers carried by 'the wedges 20, by which its lower end may beadjusted, and by a shaftlO, by which its upper end may be adjusted, inthe manner heretofore described, and the means for ef-' fecting thisadjustment and restoring this cage section, should it be selected as theone to be dropped to relieve the machine of a load, choke or uncrushablematter, is substantially the same as that herein before described, sothat repetition of a detailed description of such means is believed tobe unnecessary. At the rear end of the machine there is, of course, nobreaker plate to be adjusted, but we utilize the movement of the upperend of the cage secti0n29 to adjust the cage section 30*, mounted upon asuitable frame, whose lower end is provided with forked projections 31,which support said cage section and embrace the shaft 10* mounted inlevers 11 in the manner heretofore described in connection with theshaft 1'0 and levers 11. The shaft 10 is provided with gears and a handwheel, said gears being in mesh with gears on a shaft 9 for restoringthe pivoted cage section 29 in the manner hereinafter described. Theupper end of the cage section 30 is provided with inclined slots 32,which cooperate with a rod 33 secured to the side frame 1, so that whenthe lower end of said cage section 30 is moved inwardly the upper end,by means of said rod and slots, will also be moved inwardly.

The pivoted revolving hammers are indicated at 34 and these initiallyoperate upon the material by striking on the breaker plate 7 as itenters the machine, these hammers also co-act with the grindingsurfaces; in further crushing the material until it is of such size topass through the openings.

Instead of the perforated plates shown, spaced bars or other forms ofgrinding surfaces, common in this art may be employed. The hammers 34are pivotally mounted upon rods 35 carried by three-armed supportingplates 36 the arms of which are staggered with relation to each other,and provided with openings for the passage of the bolts 35 at differentdistances from the axis of rotation. Initially the bolts 35 are arrangedin the innermost openings. and as the hammers are worn at their pointsthe bolts can be positioned in the openings farther from the axis ofrotation, until finally the bolts are located in the outermost openingsas shown. Any intermediate adjustment, when the hammers are worn, can betaken up by adjusting the cage section. The hammer supports in the formof the three-armed plates shown, are arranged upon the shaft 37 mountedin suitable bearings in side frames 1, and whose ends are provided witha driving pulley and a balance Wheel respectively, neither of which isshown. By staggering the supporting plates 36 it is obvious that thehammers 34 are likewise staggered, and a hammer mounted between any twoarms is in line with the body portion of the supports, whereby, the armscover the side area across the machine, and, therefore, have a strikingarea equal to the length of the shaft occupied by their supportingplates.

\Vhat we claim is;

1. In a machine of the character described, the combination of apivotally mounted breaker plate, a grinding section suspended therefromadapted to be adjusted therewith. and also having a movement independentof said breaker plate, and means for adjusting the lower end of saidgrinding section.

2. In a machine of the character described, the combination of apivotally mounted breaker plate, a cage section pivotally mountedthereon, a catch for holding said cage section in position, and meansfor moving said catch to release the cage section whereby material maybe discharged from the machine.

3. In a machine of the character described.

the combination of a pivotally mounted breaker plate, a pivotallymounted cage sec tion suspended therefrom, and means for simultaneouslyadjusting said breaker plate, the end of the cage section connectedthereto, and the lower end ofthe cage section remote therefrom. 4. In amachine of the character described, the combination of a pivotallymounted breaker plate, a cage section carried thereby, a lever foradjusting said breaker plate and adjacent end of said cage section, anda wedge operated by said lever for adjusting the opposite end of saidcage section.

5. In a machine of the character described, the combination of hammers,a pivotally mounted breaker plate, a cage section pivotally connected tothe breaker plate, levers arranged on opposite sides of the breakerplate, and connections between said levers and breaker plate foradjusting the lower end of said plate and the upper end of said cagesection.

6. In a machine of the character described, the combination of a pivotedcage section, of latch levers for said section arranged on oppositesides thereof, and adjustable means in which said latch levers aremounted.

7 In a machine of the character described, the combination of a puou-J Pge opt-154 each side thereof, a block in which said latch levers aremounted, and means for adjusting said latch levers.

8. In a machine of the character described, the combination of a pivotedcage section, latch levers for supporting the lower end thereof inposition, blocks carrying said latch levers, wedges for operating saidblocks, and means for moving said wedges m 111118011.

9. In a machine of the character described, the combination of a pivotedcage section, a latch lever for supporting the same in position, andmeans for operating said latch lever to release said cage section.

10. In a machine of the character described, the combination of apivoted cage section, latch levers for supporting the same in position,and means for operating said latch levers to release said cage section.

11. In a machine of the character described, the combination of apivoted cage section, latch levers arranged on each side thereof, meansfor adjusting said latch levers to move said cage section, and means forreleasing said latch levers to drop the cage section and discharge theload.

12. In a machine of the character described, the combination of apivoted cage section, latch'levers for supporting the samein operativeposition, springs for holding said latch levers in operative relation tosaid cage section, and connected levers for operating said latch leversin unison to release the cage section.

13. In a machine of the character described, the combination of anadjustable shaft or rod, a rigid cage section pivotally mounted thereon,and gearing for swinging said cage section about said shaft or rod.

14. In a machine of the character described, the combination of anadjustable shaft or rod, a cage section mounted thereon, a hand wheel,and reducing gears interposed between the hand wheel and said shaft formoving said cage section about said shaft.

15. In a machine of the character' described, the combination with afixed pivot shaft, levers arranged thereon, a rod or shaft carried bysaid levers, a cage section mounted on said last mentioned shaft, andintermeshing gears arranged on said pivot shaft, and said last mentionedrod or shaft, whereby the said cage section may be moved.

16. In a machine of the character described, the combination of twopivotally mounted and oppositely movable grinding sections, a breakerplate connected to one of said grinding sections and adjustabletherewith, and an additional grinding section connected to the other ofsaid grinding sec- I tions and movable therewith.

17. In a machine of the character deurihed, the combination of twopivotally latch levers for said wtim] arranged on 1 mumted andoppositely movable grinding -sections, a breaker plate connected to andmovable with one of the grinding sections, means for adjusting saidgrinding sections, and independent means for tripping said sections.

- '18. In a machine of the character described, the combination of apivotally mounted breaker plate, a grinding section pivotally connectedthereto at one end, and having a movement independent of said breakerplate, a latch engaging said grinding section at the opposite end, andmeans for releasing said grinding section by moving the latch.

19. In a machine of the character described, the combination of apivoted cage section, a latch for supportingsaid section,

means for tripping: said latch, and means for independently moving thelatch to adjust the position of the cage section.

201 In a machine of the character described, the combination of apivotally mounted breaker plate, a rod engaging said plate, a grindingsection pivotally mounted on said rod, and means for changing theposition of said rod.

In testimony whereof, We have hereunto aflixed our signatures in thepresence of two Witnesses, this 8th day of June, 1910.

MILTON F. WILLIAMS. EDWARD H. FRICKEY. Witnesses:

F. R, CORNWALL, M. P. SMITH.

